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|
#!/bin/sh
#
### BEGIN INIT INFO
# Provides: resolvconf
# Required-Start: $local_fs
# Required-Stop: $local_fs
# X-Start-Before: networking ifupdown
# Should-Stop: networking ifupdown
# Default-Start: S
# Default-Stop: 0 6
# Short-Description: Nameserver information manager
# Description: This service manages the list of nameserver addresses
# used by the libc resolver and name service caches
### END INIT INFO
#
# This script is part of the resolvconf package
# See /usr/share/doc/resolvconf/copyright
# Don't use set -e; check return status instead
[ -x /sbin/resolvconf ] || exit 0
MYNAME="${0##*/}"
PATH=/sbin:/bin
RUN_DIR=/etc/resolvconf/run
IFACE_DIR="${RUN_DIR}/interface"
RESOLVCONF_FILE="${RUN_DIR}/resolv.conf"
ENABLE_UPDATES_FLAGFILE="${RUN_DIR}/enable-updates"
. /lib/lsb/init-functions
# $1 EXITSTATUS
# [$2 MESSAGE]
log_action_end_msg_and_exit()
{
log_action_end_msg "$1" ${2:+"$2"}
exit $1
}
update()
{
[ -e "$ENABLE_UPDATES_FLAGFILE" ] || return 0
cd "$IFACE_DIR"
# "update" scripts must assume that interface files are in the PWD
run-parts ${1:+--arg="$1"} ${2:+--arg="$2"} /etc/resolvconf/update.d
}
enable_updates()
{
: >| "$ENABLE_UPDATES_FLAGFILE"
}
disable_updates()
{
rm -f "$ENABLE_UPDATES_FLAGFILE"
}
case "$1" in
start)
# The "start" method should _only_ be used at boot time.
# If you want to update the resolv.conf file then use "reload".
# On package upgrade, don't run this.
log_action_begin_msg "Setting up resolvconf"
umask 022
if [ ! -d "$RUN_DIR" ] ; then
[ -L "$RUN_DIR" ] || log_action_end_msg_and_exit 1 "$RUN_DIR is neither a directory nor a symbolic link"
# Target of symlink is not a dir
{ RUN_CANONICALDIR="$(readlink -f "$RUN_DIR")" && [ "$RUN_CANONICALDIR" ] ; } || log_action_end_msg_and_exit 1 "canonical path of the run directory could not be determined"
# Create directory at the target
mkdir "$RUN_CANONICALDIR" || log_action_end_msg_and_exit 1 "error creating directory $RUN_CANONICALDIR"
fi
# The run directory exists
if [ -d "${RUN_DIR}/interface" ] ; then
rm -f ${RUN_DIR}/interface/*
else
mkdir "${RUN_DIR}/interface" || log_action_end_msg_and_exit 1 "error creating directory ${RUN_DIR}/interface"
fi
# The interface directory exists
enable_updates || log_action_end_msg_and_exit 1 "could not enable updates"
update -i
log_action_end_msg_and_exit "$?"
;;
stop)
# The "stop" method should only be used at shutdown time.
log_action_begin_msg "Stopping resolvconf"
disable_updates
log_action_end_msg_and_exit "$?"
;;
restart)
log_action_begin_msg "Restarting resolvconf"
[ -d "${RUN_DIR}/interface" ] || log_action_end_msg_and_exit 1 "${RUN_DIR}/interface is not a directory"
enable_updates || log_action_end_msg_and_exit 1 "could not enabling updates"
update
log_action_end_msg_and_exit "$?"
;;
reload|force-reload)
# Do it silently
[ -d "${RUN_DIR}/interface" ] || { log_failure_msg "${RUN_DIR}/interface is not a directory" ; exit 1 ; }
update
exit $?
;;
enable-updates)
enable_updates
exit $?
;;
disable-updates)
disable_updates
exit $?
;;
*)
echo "Usage: /etc/init.d/resolvconf {start|stop|reload|restart|force-reload|enable-updates|disable-updates}" >&2
exit 3
;;
esac
|
